CN212774139U

CN212774139U - Low-voltage double-energy-increasing pulse nipple

Info

Publication number: CN212774139U
Application number: CN202021794062.1U
Authority: CN
Inventors: 李玉兰; 玉良; 徐波; 王迪; 王俊淇; 黎有志; 马海中; 吴鹏
Original assignee: Sichuan Zhongyihui Energy Equipment Manufacturing Co ltd
Current assignee: Sichuan Zhongyihui Energy Equipment Manufacturing Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-03-23
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a two energy-increasing pulse nipple joints of low pressure, including drag reduction integral key shaft, right nipple joint, spline nipple joint, anti-drop ring, uide bushing, dish spring, dish stopper casing, drag reduction flushing pipe, self-balancing piston, energy-increasing casing A, energy-increasing stopper pipe, energy-increasing casing B and energy-increasing piston. The utility model discloses can stability and construction factor of safety.

Description

Low-voltage double-energy-increasing pulse nipple

Technical Field

The utility model relates to a drilling equipment field, in particular to two energy-increasing pulse nipple joints of low pressure.

Background

The low-pressure double-energy-increasing pulse nipple can be applied to various drilling modes, particularly horizontal wells and directional wells, and can improve the transmission of the drilling pressure and reduce the underground torsional vibration in the drilling process. The low-pressure double-energy-increasing pulse nipple has the main functions of reducing the pulse pressure of the hydraulic oscillator and enhancing the kinetic energy conversion of the hydraulic oscillator under low pressure. The low-pressure double-energy-increasing pulse nipple has the advantages that the service life of a sealing ring and the service life of the whole machine can be prolonged under low pressure, the loss of a slurry pump and diesel engine equipment can be effectively reduced under low-pressure pulse pressure, cost reduction and efficiency improvement can be realized, underground safety is improved, and the influence on various directional instruments is reduced. Along with the increase of large displacement well quantity and the continuous extension of horizontal displacement, the low pressure pair increases energy pulse nipple joint and faces the poor, at the bottom of the factor of safety scheduling problem of drag reduction spline impact stability, in view of this, provides this application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two energy boost pulse nipple joints of low pressure that stability is stronger to solve the problem that above-mentioned background art provided.

In order to realize the above purpose, the technical scheme of the utility model is as follows:

a low-pressure double-energy-increasing pulse nipple comprises a resistance-reducing spline shaft, a righting nipple, a spline nipple, an anti-drop ring, a guide sleeve, a disc spring, a disc plug shell, a resistance-reducing flushing pipe, a self-balancing piston, an energy-increasing shell A, an energy-increasing plug pipe, an energy-increasing shell B and an energy-increasing piston; a spline shaft groove is formed in the outer ring wall of one end of the resistance reducing spline shaft, an anti-falling ring is installed in the spline shaft groove, a disc spring is arranged on the outer wall of the other end of the resistance reducing spline shaft, a ring groove is formed in the middle of the outer ring wall of the anti-falling ring, and a guide sleeve is installed in the ring groove; one end of the resistance-reducing spline shaft, which is close to the disc spring, is connected with a resistance-reducing flushing pipe, the resistance-reducing flushing pipe is connected with an energy-increasing plug pipe, the energy-increasing plug pipe is connected with an energy-increasing piston, and the resistance-reducing spline shaft, the resistance-reducing flushing pipe, the energy-increasing plug pipe and the energy-increasing piston are coaxial; the anti-drop spline shaft is characterized in that a righting short section, a spline short section and a disc plug shell are sequentially sleeved outside the anti-drop spline shaft, the outer annular surface of an anti-drop ring and the outer annular surface of a guide sleeve are in contact with the inner annular wall of the spline short section, a self-balancing piston is sleeved at one end, close to the anti-drop spline shaft, of the anti-drop washpipe, an energy increasing shell A is sleeved at the other end of the anti-drop washpipe, an energy increasing shell B is sleeved on the energy increasing plug pipe, the disc plug shell sequentially covers a disc spring and the self-balancing piston, and the righting short section, the spline short section.

Preferably, the anti-falling ring is coated with grease.

Preferably, the adjacent end parts of the drag reduction spline shaft, the energy increasing plug pipe and the energy increasing piston are sequentially sleeved.

The utility model has the advantages that:

(1) the centralizing short section has a centralizing function, the guide sleeve and the anti-drop ring have a guiding anti-drop function, and the impact stability of the anti-drag spline can be effectively ensured, so that the underground construction safety coefficient is improved;

(2) and a three-piston structure is adopted, so that a good pressure transmission effect can be kept.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is the utility model discloses the structural schematic diagram of righting the nipple joint.

The labels in the figure are: 1-drag reduction spline shaft, 2-centralizing short section, 21-centralizing ring, 3-spline short section, 4-anti-drop ring, 5-guide sleeve, 6-disc spring, 7-disc plug shell, 8-drag reduction flushing pipe, 9-self-balancing piston, 10-energizing shell A, 11-energizing plug pipe, 12-energizing shell B and 13-energizing piston.

Detailed Description

The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the present invention to specific embodiments, but are for explanation and understanding only:

as shown in fig. 1 and fig. 2, the embodiment provides a low-pressure double-energization pulse nipple which comprises a drag-reduction spline shaft 1, a righting nipple 2, a spline nipple 3, an anti-drop ring 4, a guide sleeve 5, a disc spring 6, a disc plug shell 7, a drag-reduction flushing pipe 8, a self-balancing piston 9, an energization shell a10, an energization plug pipe 11, an energization shell B12 and an energization piston 13.

A spline shaft groove is formed in the outer ring wall of one end of the resistance reducing spline shaft 1, and a disc spring 6 is arranged on the outer wall of the other end of the resistance reducing spline shaft; install in the spline shaft inslot and prevent falling ring 4, prevent falling ring 4 and paint and install in the spline shaft inslot after the grease, it has the effect of being convenient for to install to film the grease, the one end that resistance reduction integral key shaft 1 is close to dish spring 6 is connected with resistance reduction flushing pipe 8, and resistance reduction flushing pipe 8 is connected with energizing plug tube 11, energizing plug tube 11 is connected with energizing piston 13, resistance reduction integral key shaft 1, energizing plug tube 11 and energizing piston 13 connect gradually through the mode that adjacent tip cup jointed, and resistance reduction integral key shaft 1, resistance reduction flushing pipe 8, energizing plug tube 11 and energizing piston 13 are coaxial.

The anti-drop spline is characterized in that a righting short section 2, a spline short section 3 and a disc plug shell 7 are sequentially sleeved outside the anti-drop spline shaft 1, the righting short section 2 comprises a ring body, the ring body is sleeved on the anti-drop spline shaft 1, two inner ring grooves coaxial with the ring body are formed in the inner ring wall of the ring body, righting rings 21 are installed in the inner ring grooves, the righting rings 21 are in contact with the outer wall of the anti-drop spline shaft 1, the righting short section 2 has a righting effect on the anti-drop spline shaft 1, the outer ring surface of an anti-drop ring 4 and the outer ring surface of a guide sleeve 5 are both in contact with the inner ring wall of the spline short section 3, the guide sleeve 5 and the anti-drop ring 4 have a guiding anti; one end of the resistance reducing flushing pipe 8, which is close to the resistance reducing spline shaft 1, is sleeved with a self-balancing piston 9, the other end of the resistance reducing flushing pipe is sleeved with an energizing shell A10, the position of the self-balancing piston 9 can change along with the well temperature and the internal temperature of a short section, the resistance reducing flushing pipe can adapt to various temperature use environments, the position of the self-balancing piston 9 is automatically adjusted, and the stability of a tool can be effectively ensured; energy-increasing casing B12 has been cup jointed on the energy-increasing stopper pipe 11, dish stopper casing 7 covers dish spring 6, self-balancing piston 9 in proper order, the end of righting nipple joint 2, spline nipple joint 3, dish stopper casing 7, energy-increasing casing A10 and energy-increasing casing B12 cup joints in proper order through the mode of joint.

Compared with a single-piston pulse nipple, the area of the single-piston pulse nipple subjected to pulse pressure is increased by 3 times by adopting three piston structures, namely a self-balancing piston 9, an energy-increasing plug tube 11 and an energy-increasing piston 13, so that the pulse pressure of the hydraulic oscillator can be reduced to 0.7-1.5Mpa, and the energy higher than that of a conventional pulse nipple can be kept.

The side wall of the energy increasing plug tube 11 is also provided with a plurality of breathing holes, and the breathing holes are commonly used technical characteristics in the pulse nipple joint and keep pressure difference balance.

The working mode of the embodiment is as follows:

the low-pressure double-energy-increasing pulse nipple enables a drilling tool connected with the low-pressure double-energy-increasing pulse nipple to generate longitudinal reciprocating motion in a well hole, temporary static friction of the drilling tool at the bottom of the well is changed into dynamic friction, frictional resistance is greatly reduced, the phenomenon of dragging of the drilling tool caused by a well track can be reduced, and effective bit pressure is guaranteed.

It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. The utility model provides a two energy boost pulse nipple joints of low pressure which characterized in that: the energy-increasing device comprises a resistance-reducing spline shaft, a centralizing short section, a spline short section, an anti-drop ring, a guide sleeve, a disc spring, a disc plug shell, a resistance-reducing flushing pipe, a self-balancing piston, an energy-increasing shell A, an energy-increasing plug pipe, an energy-increasing shell B and an energy-increasing piston; a spline shaft groove is formed in the outer ring wall of one end of the resistance reducing spline shaft, an anti-falling ring is installed in the spline shaft groove, a disc spring is arranged on the outer wall of the other end of the resistance reducing spline shaft, a ring groove is formed in the middle of the outer ring wall of the anti-falling ring, and a guide sleeve is installed in the ring groove; one end of the resistance-reducing spline shaft, which is close to the disc spring, is connected with a resistance-reducing flushing pipe, the resistance-reducing flushing pipe is connected with an energy-increasing plug pipe, the energy-increasing plug pipe is connected with an energy-increasing piston, and the resistance-reducing spline shaft, the resistance-reducing flushing pipe, the energy-increasing plug pipe and the energy-increasing piston are coaxial; the anti-drop spline shaft is characterized in that a righting short section, a spline short section and a disc plug shell are sequentially sleeved outside the anti-drop spline shaft, the outer annular surface of an anti-drop ring and the outer annular surface of a guide sleeve are in contact with the inner annular wall of the spline short section, a self-balancing piston is sleeved at one end, close to the anti-drop spline shaft, of the anti-drop washpipe, an energy increasing shell A is sleeved at the other end of the anti-drop washpipe, an energy increasing shell B is sleeved on the energy increasing plug pipe, the disc plug shell sequentially covers a disc spring and the self-balancing piston, and the righting short section, the spline short section.

2. The low-voltage double-energization pulse nipple according to claim 1, characterized in that: and grease is coated on the anti-falling ring.

3. The low-voltage double-energization pulse nipple according to claim 1, characterized in that: the adjacent end parts of the drag reduction spline shaft, the energizing plug pipe and the energizing piston are sequentially sleeved.